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docs(review-suite): confirm the session-continuation-summary verification-only regression - #90

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claude/epic-49-session-continuation-confirming-rerun
Jul 29, 2026
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docs(review-suite): confirm the session-continuation-summary verification-only regression#90
shaug merged 1 commit into
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claude/epic-49-session-continuation-confirming-rerun

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@shaug shaug commented Jul 29, 2026

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Summary

  • Small, bounded, owner-authorized confirming rerun of one finding from Run the preregistered review v2 ablation and integration closeout #57 (PR docs(review-suite): run the preregistered v2 ablation and integration closeout (#57) #88, commit b4e061f): session-continuation-summary regressed to 3/5 false positives under the verification-sufficiency-pass-only ablation configuration, flagged as small-sample (5 attempts) and worth confirming before treating as settled.
  • Reran only that one case (not the full 7-case stratum, not either other ablation configuration), 5 attempts, using the exact reproduction mechanism FROZEN-V2-CONFIGURATION.md already documents: mirror the real skills/ tree, overwrite review-correctness/SKILL.md with the committed verification-only overlay, pass as --skill-root to runner.py.
  • Result: 3 of 5 attempts reproduce, matching the original 3/5 exactly. Same finding shape (corr.verify-finalize-called), zero evaluation failures, runtime/model pin verified unchanged (claude 2.1.92, claude-opus-4-6[1m]).
  • Adds two new files only: review-suite/evals/v2/session-continuation-summary-confirming-rerun.md and its companion .report.json. No existing Run the preregistered review v2 ablation and integration closeout #57/earlier-ticket file, baseline/v1/, or #59 frozen file is modified.

Cost

  • Ceiling: $1.00. Actual spend: $0.569074 (5 attempts, one case, one configuration).

Review

  • One review-code-change cycle: solution-simplicity clean; correctness required one fix (soften an unverifiable-from-committed-JSON finding-ID citation to attribute it to direct observation) then re-checked clean; code-simplicity clean.

Test plan

  • just format
  • just lint
  • just test
  • review-code-change cycle (solution simplicity, correctness, code simplicity) — all clean after one correctness fix

🤖 Generated with Claude Code

…n-summary verification-only regression (#57 follow-up)

## Summary
- Add `review-suite/evals/v2/session-continuation-summary-confirming-rerun.md`
  and its companion `.report.json`, reporting an independent 5-attempt rerun
  of the single `session-continuation-summary` case under the
  `verification-sufficiency-pass-only` ablation configuration.
- Reproduce the exact reproduction mechanism `FROZEN-V2-CONFIGURATION.md`
  already documents: mirror the real `skills/` tree, overwrite
  `review-correctness/SKILL.md` with the committed `verification-only`
  overlay, and pass that copy as `--skill-root` to `runner.py`, scoped to a
  single-case corpus so only this one case (not the full 7-case stratum) is
  re-scored.
- Result: 3 of 5 attempts reproduce the original run's 3/5 false-positive
  rate exactly, at the pinned runtime (`claude 2.1.92`) and model
  (`claude-opus-4-6[1m]`), with zero evaluation failures. Cost: $0.569074
  against this ticket's own $1.00 ceiling.

## Why
- `#57`'s own `S1-ABLATION-MATRIX.md` found this regression while the shared
  machine was under very heavy, unrelated load, and flagged it as
  small-sample (5 attempts) and worth an independent confirming rerun before
  anyone treats it as settled. This adds that confirmation, without
  modifying any existing #57 or earlier-ticket file and without deciding
  anything about `#52`/`#53`'s disposition.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
@shaug
shaug merged commit cd8efa4 into main Jul 29, 2026
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@shaug
shaug deleted the claude/epic-49-session-continuation-confirming-rerun branch July 29, 2026 19:37
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